Improvement in magazine-stoves



l; A. BUfiKWALTER.

Magazine-Stove.

Pate-nted'Aug, 31, 1875,

N. PETERS. PHDTO-LITVNOQRAPNEK. WASHINGTON, D. C

UN TED STATES;

PATENT Crrron.

JOSEPH A. BUOKWALTER, OF ROYERS FORD, PENNSYLVANIA.

IMPROVEMENT IN MAGAZINE-.STOVES.

Specification forming part of Letters Patent No. 167,218, dated August31, 1875; application filed July 2?, 1875.

To all whom it may concern:

'Be it known that I, J OSEPH A. BUGKWAL- TER, of Royers Ford, in thecounty of Montgomery and State of Pennsylvania, have invented anImprovement in Magazine-Stoves, of which the followingis a specificationThe object of my invention is twofold: first, to provide for andcontrol, in a more reliable manner, the draft from the firechamber tothe chimney-flue and, second, to prevent, in a more perfect manner, theescape of any of the gaseous products of combustion into the room inwhich the stove may be located.

The first part of my invention consists of an inclined annular damperprovided with a series of adjustable openings, and secured below themouth of the chimney-flue, and also below a fresh-air valve in the sideof the body of the stove, at a point diametrically opposite to the mouthof the chimney-flue and the second part of my invention consists of agas-receiving chamber of peculiar construction and arrangement in theupper end of the magazine, whereby gas, which usually rises up into themagazine, will be caused to enter said chamber and pass down therefrominto the annular space which surrounds that portion of the magazinewhich is above the inclined annular damper, as will hereinafter be morefully and clearly described with reference to the accompanying drawing,in which-- Figure l is a central vertical section of that part of acylindrical magazine-stove, which is above the usual fire-pot, embodyingmy invention Fig. 2, a horizontal section of Fig. 1 below the dottedline as y thereon, and Fig. 3 is a plan view of the gas-receivingchamber above the magazine, the top cover of said chamber being swungaside in order to show the interior of the same.

The inclined annular damper A is substantially in the form of the hollowfrustum of a cone, and consists of two frusta of thin metal, eachprovided with a corresponding series of openings, to a, and the lowerfrustum having its lower edge fixed to the inner sides of the body B,horizontally around just below the lower sides of the mouths of thechimney-flue b and of the fresh-air valve 1), while the upper edge ofsaid lower frustum is fixed to the outer sides of the magazine 0, andupon this lower frustum the upper one rests loosely, or so that it canbe readily oscillated upon the lower frustum by means of a bar, a, (seeFig. 2,) which is pivoted to the former and projects through acorresponding hole in the body of the stove, so as to afford a readyhandle for operating the damper A, to either open, close, or adjust theopenings in the lower frustum, as occasion may from time to timerequire. The fresh-air valve b" is of the ordinaryvertically-oscillating form, and enables the at tendant to either admit,shut oil, or adjust the draft of air into the annular space which isabove the valve A, as occasion may at any time require. (See Fig. 1.)The gas-receiving chamber D is a space produced in the upper end of themagazine 0, and the bottom of the said chamber is a hinged lid, d, whichfits accurately, (though not air-tightly,) and rests securely, whenclosed, in the upper end of the magazine at a short distance below theextreme upper edge of said magazine, the sides of the latter beingflared outward at the part, so as to afford a seat for the said hingedlid when closed down, substantially as shown in Figs. 1 and 3. The lid dis secured in place and turns upon two journals, d d, which projectthrough the flaring sides of the magazine which form the sides of thechamber D, and the said sides are perforated by a series of small holes,0', which give open communication between the said chamber D and theannular space which is above the valve A. The chamber D is opened andclosed at top by a swing-lid, d, which, as well as the lid 61 or bottomof the chamberD, requires to be opened for pouring coal into themagazine 0.

The operation of my said invention is as follows, viz: The magazine 0being filled with coal, resting upon the incandescent coal in thefire-pot, (not shown,) the lids d and d of the gas-receiving chamber Dclosed, and also the fresh-air valve I) closed, and the annular valve Afully opened, all as shown in Fig. l, a powerful draft will pass upwardthrough the open damper A and through the mouth of the chimney-fine binto the usual chimney, and this draft can be readily diminished bypartially closing the damper A, as indicated by Fig. 2, to any requiredcontraction. In the meantime any gas that may pass upward through themagazine (3, will, on passing through the not air-tightjoint between themagazine 0 and the lid d, enter the chamber D and be immediatelywithdrawn through the series of holes 0 c of the chamber by the draftcoming up through A, and carried by the said draft into the mouth I) ofthe chimney-flue.

If it be desired to arrest the rapid combustion in the fire-potof thestove, as in leaving over night, the valve A should be nearly closed andthe fresh-air valve 1) partially or wholly opened, and thus the strengthof the draft to the mouth of the flue b sufficiently diminished Withoutdestroying the exhausting efi'ect of the same upon the chamber D indrawing the gas from the latter.

flue b, as described, with the annular space which is between themagazine 0 and the body 13, substantially as and for the purposeshereinbefore described.

JOSEPH A. BUOKWALTER.

Witnesses:

VITURIA ROSENBERGER, L. H. RosENBERGER.

